LCOV - code coverage report
Current view: top level - forms/source/richtext - richtextimplcontrol.hxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 2 6 33.3 %
Date: 2012-08-25 Functions: 2 6 33.3 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 :            : /*
       3                 :            :  * This file is part of the LibreOffice project.
       4                 :            :  *
       5                 :            :  * This Source Code Form is subject to the terms of the Mozilla Public
       6                 :            :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7                 :            :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8                 :            :  *
       9                 :            :  * This file incorporates work covered by the following license notice:
      10                 :            :  *
      11                 :            :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12                 :            :  *   contributor license agreements. See the NOTICE file distributed
      13                 :            :  *   with this work for additional information regarding copyright
      14                 :            :  *   ownership. The ASF licenses this file to you under the Apache
      15                 :            :  *   License, Version 2.0 (the "License"); you may not use this file
      16                 :            :  *   except in compliance with the License. You may obtain a copy of
      17                 :            :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18                 :            :  */
      19                 :            : #ifndef FORMS_SOURCE_RICHTEXT_RICHTEXTIMPLCONTOL_HXX
      20                 :            : #define FORMS_SOURCE_RICHTEXT_RICHTEXTIMPLCONTOL_HXX
      21                 :            : 
      22                 :            : #include "rtattributehandler.hxx"
      23                 :            : #include "richtextviewport.hxx"
      24                 :            : #include "richtextengine.hxx"
      25                 :            : #include <vcl/scrbar.hxx>
      26                 :            : #include <editeng/editdata.hxx>
      27                 :            : 
      28                 :            : #include <map>
      29                 :            : 
      30                 :            : class EditView;
      31                 :            : class EditStatus;
      32                 :            : class Window;
      33                 :            : class SvxScriptSetItem;
      34                 :            : //........................................................................
      35                 :            : namespace frm
      36                 :            : {
      37                 :            : //........................................................................
      38                 :            : 
      39                 :            :     class ITextAttributeListener;
      40                 :            :     class ITextSelectionListener;
      41                 :            :     class RichTextViewPort;
      42                 :            :     //====================================================================
      43                 :            :     //= RichTextControlImpl
      44                 :            :     //====================================================================
      45                 :            :     class RichTextControlImpl : public IEngineStatusListener
      46                 :            :     {
      47                 :            :         typedef ::std::map< AttributeId, AttributeState >                           StateCache;
      48                 :            :         typedef ::std::map< AttributeId, ::rtl::Reference< IAttributeHandler > >    AttributeHandlerPool;
      49                 :            :         typedef ::std::map< AttributeId, ITextAttributeListener* >                  AttributeListenerPool;
      50                 :            : 
      51                 :            :         StateCache              m_aLastKnownStates;
      52                 :            :         AttributeHandlerPool    m_aAttributeHandlers;
      53                 :            :         AttributeListenerPool   m_aAttributeListeners;
      54                 :            : 
      55                 :            :         ESelection              m_aLastKnownSelection;
      56                 :            : 
      57                 :            :         Control*                m_pAntiImpl;
      58                 :            :         RichTextViewPort*       m_pViewport;
      59                 :            :         ScrollBar*              m_pHScroll;
      60                 :            :         ScrollBar*              m_pVScroll;
      61                 :            :         ScrollBarBox*           m_pScrollCorner;
      62                 :            :         RichTextEngine*         m_pEngine;
      63                 :            :         EditView*               m_pView;
      64                 :            :         ITextAttributeListener* m_pTextAttrListener;
      65                 :            :         ITextSelectionListener* m_pSelectionListener;
      66                 :            :         bool                    m_bHasEverBeenShown;
      67                 :            : 
      68                 :            :     public:
      69                 :          0 :         struct GrantAccess { friend class RichTextControl; private: GrantAccess() { } };
      70                 :          0 :         inline EditView*        getView( const GrantAccess& ) const     { return m_pView; }
      71                 :          0 :         inline RichTextEngine*  getEngine( const GrantAccess& ) const   { return m_pEngine; }
      72                 :          0 :         inline Window*          getViewport( const GrantAccess& ) const { return m_pViewport; }
      73                 :            : 
      74                 :            :     public:
      75                 :            :         RichTextControlImpl( Control* _pAntiImpl, RichTextEngine* _pEngine,
      76                 :            :             ITextAttributeListener* _pTextAttrListener, ITextSelectionListener* _pSelectionListener );
      77                 :            :         virtual ~RichTextControlImpl();
      78                 :            : 
      79                 :            :         /** updates the cache with the state of all attribute values from the given set, notifies
      80                 :            :             the listener if the state changed
      81                 :            :         */
      82                 :            :         void    updateAllAttributes( );
      83                 :            : 
      84                 :            :         /** updates the cache with the state of the attribute given by which id, notifies
      85                 :            :             the listener if the state changed
      86                 :            :         */
      87                 :            :         void    updateAttribute( AttributeId _nAttribute );
      88                 :            : 
      89                 :            :         /// enables the callback for a particular attribute
      90                 :            :         void    enableAttributeNotification( AttributeId _nAttributeId, ITextAttributeListener* _pListener = NULL );
      91                 :            : 
      92                 :            :         /// disables the change notifications for a particular attribute
      93                 :            :         void    disableAttributeNotification( AttributeId _nAttributeId );
      94                 :            : 
      95                 :            :         /// executes a toggle of the given attribute
      96                 :            :         bool    executeAttribute( const SfxItemSet& _rCurrentAttribs, SfxItemSet& _rNewAttribs, AttributeId _nAttribute, const SfxPoolItem* _pArgument, ScriptType _nForScriptType );
      97                 :            : 
      98                 :            :         /// retrieves the state of the given attribute from the cache
      99                 :            :         AttributeState  getAttributeState( AttributeId _nAttributeId ) const;
     100                 :            : 
     101                 :            :         /** normalizes the given item so that the state of script dependent attributes
     102                 :            :             is correct considering the current script type
     103                 :            : 
     104                 :            :             There are some attributes which are script dependent, e.g. the CharPosture. This means
     105                 :            :             that in real, there are 3 attributes for this, one for every possible script type (latin,
     106                 :            :             asian, complex). However, to the out world, we behave as if there is only one attribute:
     107                 :            :             E.g., if the outter world asks for the state of the "CharPosture" attribute, we return
     108                 :            :             the state of either CharPostureLatin, CharPostureAsian, or CharPostureComplex, depending
     109                 :            :             on the script type of the current selection. (In real, it may be more complex since
     110                 :            :             the current selection may contain more than one script type.)
     111                 :            : 
     112                 :            :             This method normalizes a script dependent attribute, so that it's state takes into account
     113                 :            :             the currently selected script type.
     114                 :            :         */
     115                 :            :         void        normalizeScriptDependentAttribute( SvxScriptSetItem& _rScriptSetItem );
     116                 :            : 
     117                 :            :         // gets the script type of the selection in our edit view (with fallback)
     118                 :            :         ScriptType  getSelectedScriptType() const;
     119                 :            : 
     120                 :            :         /** re-arranges the view and the scrollbars
     121                 :            :         */
     122                 :            :         void    layoutWindow();
     123                 :            : 
     124                 :            :         /** to be called when the style of our window changed
     125                 :            :         */
     126                 :            :         void    notifyStyleChanged();
     127                 :            : 
     128                 :            :         /** to be called when the zoom of our window changed
     129                 :            :         */
     130                 :            :         void    notifyZoomChanged();
     131                 :            : 
     132                 :            :         /** to be called when the STATE_CHANGE_INITSHOW event arrives
     133                 :            :         */
     134                 :            :         void    notifyInitShow();
     135                 :            : 
     136                 :            :         // VCL "overrides"
     137                 :            :         void    SetBackgroundColor( );
     138                 :            :         void    SetBackgroundColor( const Color& _rColor );
     139                 :            : 
     140                 :            :         void    SetReadOnly( bool _bReadOnly );
     141                 :            :         bool    IsReadOnly() const;
     142                 :            : 
     143                 :            :         void    SetHideInactiveSelection( bool _bHide );
     144                 :            :         bool    GetHideInactiveSelection() const;
     145                 :            : 
     146                 :            :         /// draws the control onto a given output device
     147                 :            :         void    Draw( OutputDevice* _pDev, const Point& _rPos, const Size& _rSize, sal_uLong _nFlags );
     148                 :            : 
     149                 :            :         /// handles command events arrived at the anti-impl control
     150                 :            :         long    HandleCommand( const CommandEvent& _rEvent );
     151                 :            : 
     152                 :            :     private:
     153                 :            :         // updates the cache with the state provided by the given attribut handler
     154                 :            :         void    implUpdateAttribute( AttributeHandlerPool::const_iterator _pHandler );
     155                 :            : 
     156                 :            :         // updates the cache with the given state, and calls listeners (if necessary)
     157                 :            :         void    implCheckUpdateCache( AttributeId _nAttribute, const AttributeState& _rState );
     158                 :            : 
     159                 :            :         // updates range and position of our scrollbars
     160                 :            :         void    updateScrollbars();
     161                 :            : 
     162                 :            :         // determines whether automatic (soft) line breaks are ON
     163                 :            :         bool    windowHasAutomaticLineBreak();
     164                 :            : 
     165                 :            :         /// hides or shows our scrollbars, according to the current WinBits of the window
     166                 :            :         void    ensureScrollbars();
     167                 :            : 
     168                 :            :         /// ensures that our "automatic line break" setting matches the current WinBits of the window
     169                 :            :         void    ensureLineBreakSetting();
     170                 :            : 
     171                 :        128 :         inline  bool    hasVScrollBar( ) const { return m_pVScroll != NULL; }
     172                 :        108 :         inline  bool    hasHScrollBar( ) const { return m_pHScroll != NULL; }
     173                 :            : 
     174                 :            :         // IEngineStatusListener overridables
     175                 :            :         virtual void EditEngineStatusChanged( const EditStatus& _rStatus );
     176                 :            : 
     177                 :            :     private:
     178                 :            :         DECL_LINK( OnInvalidateAllAttributes, void* );
     179                 :            :         DECL_LINK( OnHScroll, ScrollBar* );
     180                 :            :         DECL_LINK( OnVScroll, ScrollBar* );
     181                 :            :     };
     182                 :            : 
     183                 :            : //........................................................................
     184                 :            : } // namespace frm
     185                 :            : //........................................................................
     186                 :            : 
     187                 :            : #endif // FORMS_SOURCE_RICHTEXT_RICHTEXTIMPLCONTOL_HXX
     188                 :            : 
     189                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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